A 10kg object is 15 meters up a hill. Find its potential energy

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

How do the kidneys affect homeostasis